Rosenberg was executed for war crimes in 1946. His diary was among several
documents kept by Robert Kempner, a U.S. government lawyer at the Nuremberg trials.
The museum took possession of parts of Kempner's collection after he died in 1993,
but the Rosenberg diary pages remained missing.

Acting on information received last November, authorities recently seized the
missing pages after locating them in upstate New York.